Dashboard Questions Topics Companies Sheets

String

Topic

744 coding problems covering String concepts. Master this topic and improve your problem-solving skills.

744

Problems

214

Easy

369

Medium

161

Hard

Difficulty

All744 Easy214 Medium369 Hard161

Title	Solve	Difficulty	Companies	Topics
1682. Longest Palindromic Subsequence II	Solve	Medium	Codenation	Dynamic Programming String
1684. Count the Number of Consistent Strings	Solve	Easy	Amazon+1	Array Bit Manipulation+3
1689. Partitioning Into Minimum Number Of Deci-Binary Numbers	Solve	Medium	Apple	Greedy String
1694. Reformat Phone Number	Solve	Easy	Toptal	String
1698. Number of Distinct Substrings in a String	Solve	Medium	Bloomberg+3	Hash Function Rolling Hash+3
1702. Maximum Binary String After Change	Solve	Medium	Huawei	Greedy String
1704. Determine if String Halves Are Alike	Solve	Easy	Amazon	Counting String
1717. Maximum Score From Removing Substrings	Solve	Medium	Google	Greedy Stack+1
1736. Latest Time by Replacing Hidden Digits	Solve	Easy	Google	Greedy String
1737. Change Minimum Characters to Satisfy One of Three Conditions	Solve	Medium	Google	Counting Hash Table+2
1745. Palindrome Partitioning IV	Solve	Hard	tcs	Dynamic Programming String
1750. Minimum Length of String After Deleting Similar Ends	Solve	Medium	Goldman Sachs	String Two Pointers
1754. Largest Merge Of Two Strings	Solve	Medium	Snapchat	Greedy String+1
1758. Minimum Changes To Make Alternating Binary String	Solve	Easy	Tesla	String
1759. Count Number of Homogenous Substrings	Solve	Medium	Alibaba+1	Math String
1763. Longest Nice Substring	Solve	Easy	Microsoft	Bit Manipulation Divide and Conquer+3
1768. Merge Strings Alternately	Solve	Easy	Uber	String Two Pointers
1769. Minimum Number of Operations to Move All Balls to Each Box	Solve	Medium	Amazon	Array Prefix Sum+1
1771. Maximize Palindrome Length From Subsequences	Solve	Hard	Goldman Sachs	Dynamic Programming String
1772. Sort Features by Popularity	Solve	Medium	Amazon	Array Hash Table+2
1773. Count Items Matching a Rule	Solve	Easy	Adobe+1	Array String
1781. Sum of Beauty of All Substrings	Solve	Medium	Google	Counting Hash Table+1
1784. Check if Binary String Has at Most One Segment of Ones	Solve	Easy	Cisco	String
1790. Check if One String Swap Can Make Strings Equal	Solve	Easy	Facebook	Counting Hash Table+1
1794. Count Pairs of Equal Substrings With Minimum Difference	Solve	Medium	Google	Greedy Hash Table+1
1796. Second Largest Digit in a String	Solve	Easy	Softwire	Hash Table String
1804. Implement Trie II (Prefix Tree)	Solve	Medium	Apple+1	Design Hash Table+2
1805. Number of Different Integers in a String	Solve	Easy	Expedia	Hash Table String
1807. Evaluate the Bracket Pairs of a String	Solve	Medium	Google	Array Hash Table+1
1812. Determine Color of a Chessboard Square	Solve	Easy	JPMorgan	Math String
1813. Sentence Similarity III	Solve	Medium	Google	Array String+1
1816. Truncate Sentence	Solve	Easy	Bloomberg	Array String
1830. Minimum Number of Operations to Make String Sorted	Solve	Hard	Samsung	Combinatorics Math+1
1832. Check if the Sentence Is Pangram	Solve	Easy	Facebook+1	Hash Table String
1839. Longest Substring Of All Vowels in Order	Solve	Medium	Thomson Reuters	Sliding Window String
1842. Next Palindrome Using Same Digits	Solve	Hard	Amazon+1	String Two Pointers
1844. Replace All Digits with Characters	Solve	Easy	Adobe+1	String
1849. Splitting a String Into Descending Consecutive Values	Solve	Medium	-	Backtracking String
1850. Minimum Adjacent Swaps to Reach the Kth Smallest Number	Solve	Medium	Amazon+1	Greedy String+1
1859. Sorting the Sentence	Solve	Easy	Adobe+1	Sorting String
1864. Minimum Number of Swaps to Make the Binary String Alternating	Solve	Medium	Amazon+1	Greedy String
1869. Longer Contiguous Segments of Ones than Zeros	Solve	Easy	Amazon	String
1871. Jump Game VII	Solve	Medium	Amazon+1	Dynamic Programming Prefix Sum+2
1876. Substrings of Size Three with Distinct Characters	Solve	Easy	Quora	Counting Hash Table+2
1880. Check if Word Equals Summation of Two Words	Solve	Easy	-	String
1881. Maximum Value after Insertion	Solve	Medium	-	Greedy String
1888. Minimum Number of Flips to Make the Binary String Alternating	Solve	Medium	Google	Dynamic Programming Greedy+2
1896. Minimum Cost to Change the Final Value of Expression	Solve	Hard	Google	Dynamic Programming Math+2
1897. Redistribute Characters to Make All Strings Equal	Solve	Easy	Moengage	Counting Hash Table+1
1898. Maximum Number of Removable Characters	Solve	Medium	Alphonso	Array Binary Search+2